<template>
  <div
    class="page-account"
    :style="
      backgroundImages
        ? { backgroundImage: 'url(' + backgroundImages + ')' }
        : { backgroundImage: 'url(' + backgroundImageMo + ')' }
    "
  >
    <div
      class="container"
      :class="[fullWidth > 768 ? 'containerSamll' : 'containerBig']"
    >
      <template v-if="fullWidth > 768">
        <swiper :options="swiperOption" class="swiperPross">
          <swiper-slide
            v-for="(item, index) in swiperList"
            :key="index"
            class="swiperPic"
          >
            <!-- <img :src="item.pic"> -->
            <img :src="loginPic" alt="logo" />
          </swiper-slide>
          <div slot="pagination" class="swiper-pagination" />
        </swiper>
      </template>
      <div class="index_from page-account-container">
        <div class="page-account-top">
          <div class="page-account-top-logo">
            <img :src="loginLogo" alt="logo" />
          </div>
        </div>
        <el-form
          ref="loginForm"
          :model="loginForm"
          :rules="loginRules"
          class="login-form"
          autocomplete="on"
          label-position="left"
          @keyup.enter="handleLogin"
        >
          <el-form-item prop="account">
            <el-input
              ref="account"
              v-model="loginForm.account"
              prefix-icon="el-icon-user"
              placeholder="用户名"
              name="username"
              type="text"
              tabindex="1"
              autocomplete="on"
            />
          </el-form-item>

          <el-form-item prop="pwd">
            <el-input
              :key="passwordType"
              ref="pwd"
              v-model="loginForm.pwd"
              prefix-icon="el-icon-lock"
              :type="passwordType"
              placeholder="密码"
              name="pwd"
              tabindex="2"
              auto-complete="on"
            />
            <span class="show-pwd" @click="showPwd">
              <svg-icon
                :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"
              />
            </span>
          </el-form-item>

          <el-form-item prop="code" class="captcha">
            <div class="captcha">
              <el-input
                ref="username"
                v-model="loginForm.code"
                style="width: 218px"
                prefix-icon="el-icon-message"
                placeholder="验证码"
                name="username"
                type="text"
                tabindex="3"
                autocomplete="on"
              />
              <div class="imgs" @click="getCaptcha()">
                <img :src="captchatImg" />
              </div>
            </div>
          </el-form-item>

          <div class="acea-row">
            <el-button
              :loading="loading"
              type="primary"
              style="width: 100%; margin-bottom: 30px"
              @click.native.prevent="handleLogin"
              >登录
            </el-button>
            <!--<div class="acea-row footer" @click="onWechat">-->
            <!--<div class="wechat mr10"><img src="../../assets/imgs/weixin.png"></div>-->
            <!--<span>微信</span>-->
            <!--</div>-->
          </div>
        </el-form>
      </div>
    </div>
  </div>
</template>

<script>
import { validUsername } from "@/utils/validate";
import "@/assets/js/canvas-nest.min.js";
import { getLoginPicApi, captchaApi, codeCheckApi } from "@/api/user";
import { getStoreStaff } from "@/libs/public";
import { getWXCodeByUrl, loginByWxCode } from "@/libs/wechat";
import { getWechatConfig } from "@/api/wxApi";
import { getToken, removeToken, setToken } from "@/utils/auth";
import Cookies from "js-cookie";
export default {
  name: "Login",
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!validUsername(value)) {
        callback(new Error("Please enter the correct user name"));
      } else {
        callback();
      }
    };
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6 || value.length > 12) {
        callback(new Error("密码位数为6-12位"));
      } else {
        callback();
      }
    };
    return {
      captchatImg: "",
      swiperList: [],
      // loginLogo: require('@/assets/imgs/logo.png'),
      loginLogo: "",
      loginPic: "",
      backgroundImages: "",
      backgroundImageMo: require("@/assets/imgs/bg.jpg"),
      fullWidth: document.body.clientWidth,
      swiperOption: {
        pagination: {
          el: ".pagination",
        },
        autoplay: {
          enabled: true,
          disableOnInteraction: false,
          delay: 3000,
        },
      },
      loginForm: {
        account: "admin", // admin
        pwd: "123456",
        key: "",
        code: "",
        wxCode: "",
      },
      loginRules: {
        account: [{ required: true, trigger: "blur", message: "请输入用户名" }], // validator: validateUsername
        pwd: [{ required: true, trigger: "blur", message: "请输入密码" }],
        code: [
          { required: true, message: "请输入正确的验证码", trigger: "blur" },
        ],
      },
      passwordType: "password",
      capsTooltip: false,
      loading: false,
      showDialog: false,
      redirect: undefined,
      otherQuery: {},
    };
  },
  watch: {
    fullWidth(val) {
      // 为了避免频繁触发resize函数导致页面卡顿，使用定时器
      if (!this.timer) {
        // 一旦监听到的screenWidth值改变，就将其重新赋给data里的screenWidth
        this.screenWidth = val;
        this.timer = true;
        const that = this;
        setTimeout(function () {
          // 打印screenWidth变化的值
          that.timer = false;
        }, 400);
      }
    },
    $route: {
      handler: function (route) {
        const query = route.query;
        if (query) {
          this.redirect = query.redirect;
          this.otherQuery = this.getOtherQuery(query);
        }
      },
      immediate: true,
    },
  },
  created() {
    const _this = this;
    document.onkeydown = function (e) {
      if (_this.$route.path.indexOf("login") !== -1) {
        const key = window.event.keyCode;
        if (key === 13) {
          _this.handleLogin();
        }
      }
    };
    window.addEventListener("resize", this.handleResize);
  },
  mounted() {
    this.getInfo();
    this.$nextTick(() => {
      if (this.screenWidth < 768) {
        document
          .getElementsByTagName("canvas")[0]
          .removeAttribute("class", "index_bg");
      } else {
        document.getElementsByTagName("canvas")[0].className = "index_bg";
      }
    });
    if (this.loginForm.account === "") {
      this.$refs.account.focus();
    } else if (this.loginForm.pwd === "") {
      this.$refs.pwd.focus();
    }
    this.getCaptcha();
    this.agentWeiXinLogin();
  },
  beforeCreate() {
    if (this.fullWidth < 768) {
      document
        .getElementsByTagName("canvas")[0]
        .removeAttribute("class", "index_bg");
    } else {
      document.getElementsByTagName("canvas")[0].className = "index_bg";
    }
  },
  destroyed() {
    // window.removeEventListener('storage', this.afterQRScan)
  },
  beforeDestroy: function () {
    window.removeEventListener("resize", this.handleResize);
    document
      .getElementsByTagName("canvas")[0]
      .removeAttribute("class", "index_bg");
  },
  methods: {
    agentWeiXinLogin() {
      // 判断是否需要微信公众号登陆
      const _isWechat = this.$wechat.isWeixin();
      if (_isWechat) {
        let code = this.$route.query.code;
        let state = this.$route.query.state;
        let wxAuthPath = location.origin + "/login";
        //  如果没有code 去获取
        if (null == code) {
          getWXCodeByUrl(wxAuthPath, "step1");
        }
        // 如果有state=step1 根据code去登陆
        if (state === "step1") {
          loginByWxCode(code)
            .then((res) => {
              sessionStorage.setItem("token", res.token);
              this.$router.push({
                path: this.redirect || "/",
                query: this.otherQuery,
              });
            })
            .catch((err) => {
              // 如果登陆失败，那么输入账号登陆，重新获取code传递给后端做绑定
              getWXCodeByUrl(wxAuthPath, "step2");
            });
        } else if (state === "step2") {
          this.loginForm.wxCode = code;
        }
      }
    },
    onWechat() {
      let url = this.$route.query.redirect
        ? this.$route.query.redirect
        : "/dashboard";
      this.$wechat.oAuth(url, "login");
    },
    handleResize(event) {
      this.fullWidth = document.body.clientWidth;
      if (this.fullWidth < 768) {
        document
          .getElementsByTagName("canvas")[0]
          .removeAttribute("class", "index_bg");
      } else {
        document.getElementsByTagName("canvas")[0].className = "index_bg";
      }
    },
    getInfo() {
      getLoginPicApi().then((res) => {
        console.log( res,'001');
        this.swiperList = res.banner;
        this.loginLogo = res.loginLogo
        this.loginPic = res.loginLogo
        this.backgroundImages = res.backgroundImage;
        // Cookies.set('MerInfo', JSON.stringify(data))
      });
    },
    checkCapslock(e) {
      const { key } = e;
      this.capsTooltip = key && key.length === 1 && key >= "A" && key <= "Z";
    },
    showPwd() {
      if (this.passwordType === "password") {
        this.passwordType = "";
      } else {
        this.passwordType = "password";
      }
      this.$nextTick(() => {
        this.$refs.pwd.focus();
      });
    },
    handleLogin() {
      const code = this.$route.query.code;
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading = true;
          if (this.$wechat.isWeixin()) {
            this.loginForm.wxCode = code;
          }
          this.$store
            .dispatch("user/login", this.loginForm)
            .then(() => {
              this.$router.push({
                path: this.redirect || "/",
                query: this.otherQuery,
              });
              getStoreStaff();
              this.loading = false;
            })
            .catch((err) => {
              this.loading = false;
              if (this.$wechat.isPhone()) this.$dialog.error(err.message);
              this.getCaptcha();
            });
        } else {
          return false;
        }
      });
    },
    getCaptcha() {
      captchaApi()
        .then((data) => {
          this.captchatImg = data.code;
          this.loginForm.key = data.key;
        })
        .catch(({ message }) => {
          this.$message.error(message);
        });
    },
    getOtherQuery(query) {
      return Object.keys(query).reduce((acc, cur) => {
        if (cur !== "redirect") {
          acc[cur] = query[cur];
        }
        return acc;
      }, {});
    },
  },
};
</script>

<style lang="scss" scoped>
$screen-md: 768px;
$font-size-base: 14px;
$animation-time: 0.3s;
$animation-time-quick: 0.15s;
$transition-time: 0.2s;
$ease-in-out: ease-in-out;
$subsidiary-color: #808695;
.footer {
  align-items: center;
  justify-content: center;
  width: 50%;
  height: 36px;
  cursor: pointer;
}
.wechat {
  width: 26px;
  height: 26px;
  img {
    width: 100%;
    height: 100%;
  }
}
.page-account {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  overflow: auto;

  &-container {
    flex: 1;
    padding: 32px 0;
    text-align: center;
    width: 384px;
    margin: 0 auto;

    &-result {
      width: 100%;
    }
  }

  &-tabs {
    .ivu-tabs-bar {
      border-bottom: none;
    }
    .ivu-tabs-nav-scroll {
      text-align: center;
    }
    .ivu-tabs-nav {
      display: inline-block;
      float: none;
    }
  }
  &-top {
    padding: 32px 0;
    &-logo {
      img {
        max-height: 75px;
      }
    }
    &-desc {
      font-size: $font-size-base;
      color: $subsidiary-color;
    }
  }

  &-auto-login {
    margin-bottom: 24px;
    text-align: left;
    a {
      float: right;
    }
  }

  &-other {
    margin: 24px 0;
    text-align: left;
    span {
      font-size: $font-size-base;
    }
    img {
      width: 24px;
      margin-left: 16px;
      cursor: pointer;
      vertical-align: middle;
      opacity: 0.7;
      transition: all $transition-time $ease-in-out;
      &:hover {
        opacity: 1;
      }
    }
  }

  .ivu-poptip,
  .ivu-poptip-rel {
    display: block;
  }

  &-register {
    float: right;
    &-tip {
      text-align: left;
      &-title {
        font-size: $font-size-base;
      }
      &-desc {
        white-space: initial;
        font-size: $font-size-base;
        margin-top: 6px;
      }
    }
  }

  &-to-login {
    text-align: center;
    margin-top: 16px;
  }

  &-header {
    text-align: right;
    position: fixed;
    top: 16px;
    right: 24px;
  }
}
.labelPic {
  position: absolute;
  right: 0;
}
@media (min-width: $screen-md) {
  .page-account {
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
  }
  .page-account-container {
    padding: 32px 0 24px 0;
    position: relative;
  }
}
.page-account {
  display: flex;
}

.page-account .code {
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-account .code .pictrue {
  height: 40px;
}

.swiperPross {
  border-radius: 6px 0px 0px 6px;
  overflow: hidden;
}

.swiperPross,
.swiperPic,
.swiperPic img {
  width: 286px;
  height: 100%;
}

.swiperPic img {
  width: 100%;
  height: 100%;
}

.container {
  height: 400px !important;
  padding: 0 !important;
  /*overflow: hidden;*/
  border-radius: 6px;
  z-index: 1;
  display: flex;
}

.containerSamll {
  /*width: 56% !important;*/
  width: 670px;
  background: #fff !important;
}

.containerBig {
  width: auto !important;
  background: #f7f7f7 !important;
}

.index_from {
  width: 384px;
  padding: 0 40px 32px 40px;
  height: 400px;
  box-sizing: border-box;
}

.page-account-top {
  padding: 20px 0 !important;
  box-sizing: border-box !important;
  display: flex;
  justify-content: center;
}

.page-account-container {
  border-radius: 0px 6px 6px 0px;
}

.btn {
  background: linear-gradient(
    90deg,
    rgba(25, 180, 241, 1) 0%,
    rgba(14, 115, 232, 1) 100%
  ) !important;
}
</style>

<style lang="scss" scoped>
.captcha {
  display: flex;
  align-items: flex-start;
}
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;
.imgs {
  img {
    height: 36px;
  }
}
.login-form {
  position: relative;
  max-width: 100%;
  margin: 0 auto;
  overflow: hidden;
}
.tips {
  font-size: 14px;
  color: #fff;
  margin-bottom: 10px;

  span {
    &:first-of-type {
      margin-right: 16px;
    }
  }
}
.svg-container {
  padding: 6px 5px 6px 15px;
  color: $dark_gray;
  vertical-align: middle;
  width: 30px;
  display: inline-block;
}
.show-pwd {
  position: absolute;
  right: 10px;
  top: 7px;
  font-size: 16px;
  color: $dark_gray;
  cursor: pointer;
  user-select: none;
  ::v-deep.svg-icon {
    vertical-align: 0.3em;
  }
}
.thirdparty-button {
  position: absolute;
  right: 0;
  bottom: 6px;
}
</style>
